The DHI-DB11 WiFi Video Doorbell is a component of the Dahua LincX2PRO camera series. The doorbell offers Passive IR motion detection and transmits video and audio to a mobile phone for remote visual confirmation and communication with visitors. This device is compatible with Dahua NVRs; Dahua X5, X7, and X82 Series HDCVI DVRs, and with the DMSS mobile application. The DHI-DB11 offers high-resolution video ideal for surveillance at homes and small retail or dining establishments.